IS 12680: Wooden sofa-cum-bed-

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IS 12680 (1989): Wooden sof a-cum-bed- [CED 35: Furniture]

Jawaharlal Nehru
'Step Out From the Old to the New"

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PROTECTED BY COPYRIGHT

IS 12680 : 1989
Reaffirmed 2007

Indian Standard
WOODEN SOFA-CUM-BED — SPECIFICATION

UDC 684-433"3*041

©BIS 1989

BUREAU OF INDIAN STANDARDS

MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

NofenUfer 1989 Price Group 1

AMENDMENT NO. 1 SEPTEMBER 1993

TO

IS 12680: 1989 WOODEN SOFA-CUM-BED —

SPECIFICATION

( Page \, clause AS ) — Add the following new clause after 43 and
lenunber the subsequent clauses:

"4< MmUus Dowhy nbRbowd (MDF)

MDF used for the nunubctuic of wooden sofa -cum -bed shall conform to
IS 12406 : 1988 'Specificatioa for medium density fibreboard for general
puipoaes'."

( Page 1, claux (.1. line 5 ) — Insert 'or MDF' after the words 'Mock
board'.

(CED35)

ReDfonaDhv Unit. BIS, New DelU, India

AMENDMENT NO. 2 FEBRUARY 1997

TO

IS 12680:1989 WOODEN SOFA-CUM-BED —

SPECIFICATION

( Second cover page^ foreword ) — Insert the following after second para:

'A scheme of labelling environment friendly products to be known as ECO
Mark is being introduced at the instance of the Ministry of Environment and
Forests (MEF), Government of India. The ECO Mark shall be admiiustrered by
the Bureau of Indian Sundards (BIS) under the BIS Act, 1986 as per the
Regulation No.71 dated 21 February 1991 published in the Gazette of the
Government of India. For a product to be eligible for ECO Mark, it shall also
carry the Standard Mark of the BIS besides meeting additional optional
environment friendly requirements.'

( Page 1, clause 4.1 ) — Substitute the following for the existing clause:

"4.1 Timber — Any species of timber specified in IS 13622 : 1993 * Indian
timber for furnitures and cabinets — Classification' shall be used in the
manufacture of wooden sofa-cum-bed.

4.1.1 For ECO Mark, only species of timber as specified in IS 13622 : 1993
from sources other than natural forests such as timber from industrial and social
forestry plantations, shade trees from tea and coffee estates, etc, shall be used for
the manufacture of wooden sofa-cum-bed.**

( Page 1, clause 4.2 ) — Insert tbc following at the end of the clause:

*For ECO Mark, the particle board shall conform to the requirements specillcd in
IS 3087: 1985 for ECO Mark purposes.*

( Page 1 , clause 43 ) — Insert the following at the end of the clause:

'For ECO Mark, the veneered particle board shall conform to the requirements
specified in IS 3097 : 1980 for ECO Mark purposes.'

( Page 1, clause 4.4 ) ~ Ittsert the following at the end of the clause:

'For ECO Mark, the blockboard shall conform to the requirements specified in
IS 1659 : 1990 for ECO Mark purposes.'

( Page l^ clause 43 ) — substitute the following for the existing clause:

*'4.5 Plywood — Plywood used shall conform to IS 303 : 1989 'Specification
for plywood for general puq)oses ( third revision )'.

Amend No. 2 to IS 12680 : 1989'

4.5.1 For ECO Mark the plywood shaH conform to the requirements specified in
IS 303 : 1989 for ECO Mark purposes."

[Page I, clause 4.6 (see also Amendment No. 1 ) ] - Insert the following
at the end of the clause:

'For ECO Mark, the medium density fibreboard shaH conform to the
requirements specified in IS 12486 : 1988 for ECO Mark purposes:

( Page 2, clause 7 ) - Insert the following new clause after 7 and renumber
the subsequent clause:

'8. ADDITIONAL REQUIREMENTS FOR ECO MARK

8.1 General Requirements

8.1.1 The product shall conform to the requirements of quality and
performance as specified in the standard.

8.1.2 The manufacturer shall produce to BIS environmental consent clearance
from the concerned State Pollution Control Board as per the provisions of the
Water (Prevention and Control of Pollution) Act, 1914 Sind Air (Prevention and
Control of Pollution) Act, 1981 alongwith the authorization, jf required under the
Environment (Protection) Act, 1986, while applying for ECO Mark.

8.2 Specific Requirements

The product shall conform to the specific requirements given for ECO Mark
under relevant clauses of this standard.

NOTE - The manufacturer shall provide documentary evidence by way of certification
or declaration to Ihis effect 10 the Bureau of Indian Standards while applying for EeO

Marlt.-

[ Page 2, clause 8.1 ( renumbered as 9.1 ) ) - Insert the following new
clause after renumbered clause M :

'9.2 The criteria for which the product has been labelled as ECO Mark.'
(CEO 35)

Reprography Unit, BIS. Now Delhi, India

'Purniture'Sectiooal Committee, BDC 35

FOREWORD

This Indian Standard was adopted by the Bureau of Indian Standards on 23 May 1989, after the
draft finalized by the Furniture Sectional Committee had been approved by the Civil Engineering
Division Council.

Wooden ftirniture is being made in the country over a number of years. However, the sizes, finish
and ftinctions of furniture items as made by various manufacturers require to be co-ordinated.
This standard is being issued with a view to rationalize the sizes, the type and functional require-
ments and finishes of wooden sofa*cum*bed in the interest of the manufacturers and the consumer.

For the purpose of deciding whether a particular requirement of this standard is complied with,
the final value, observed or calculated, expressing the results of a test or analysis, shall be rounded
off in accordance with IS 2 : 1960 'Rules for rounding off numerical values ( revised )\ The
number of significant places retained in the rounded off value should be the same as that of the
specified value in this standard.

IS |2^ : |9|9

Indian Standard
WOODEN SOFA-CUM-BED — SPECIFICATION

1 SCOPE

1.1 This standard lays down requirements of
materials, functional dimensions and finishes of
wooden sofa-cum-bed used as domestic furniture.

% HEFERENCES

2.1 The Indian Standards listed in Annex A
are necessary adjuncts to this standard.

3 TERMINOLOGY

3.0 For the purpose of this standard » the
following definitions shall apply.

3.1 Hard Seat

A seat without cushioning material.

3.2 Seat Helglit

The height of the seat means the distance of the
top of the seat from the floor surface. In case
of cushion seats or seats with springs, the height
shall be measured after applying a uniform load
of 70 kg on the entire seating surface meant for
silting/sleeping one person.

3.3 Sofa*ciim-Bed

A form of sitting room furniture capable of
being used for sitting, relaxing, sleeping, etc.

3.4 Sofa Seat

A seat provided or covered with cushioning
material.

4 MATERIALS

4.1 Timbers

Timbers to be used for making wooden frames,
etc, for sofa-cum-bed shall be well seasoned as
given in IS ll4i : 1973. When timbers are used,
sap-wood of durable species and timbers of
noB-darable species shall be given preservative
treatment in accordance with IS 401 : 1982.
"n^e moiqUire content of timber shall conform to

4.2 Particle Board

Wood particle boards required for manufacture
of wobden sofk-cum-bed shall conform to
IS 30t7 2 198C» and shall be of type FPT, that
is, jBbit'pressed-three-layer type.

4.3 Ycwini Partkk Hoard

Vfiifitf^ partible ^rd used f^t the manufac-
ture of wooden sofn»cum-bed shall conform to
I$|9»7;19|Q.

4.4 Block Boards

Block boards used for the manufacture of
wooden sofa-cum-bed shall conform to
IS 1659 : 1979.

4.5 Plywood

Plywood required for the manufacture of wooden
sofa-cum-bed shall conform to IS 303 : 1975.
Any of the three grades of plywood, that is,
BWR, WWR and CWR can be used where air-
drying paints, enamel or varnishes are to be
used or where the plywood is to be covered
with decorative laminates* Where finishing is
to be done with suitable over-drying paints,
enamels or varnishes, only BWR grade of ply-
wood shall be used. The plywood used shall
not be inferior to Type B.

4.6 Screws

Screws shall conform to
IS 6760 : 1972.

4.7 Adheaives

Adhesive used for joining
IS 848: 1974, IS 851 : 197«,
IS 4835 : 1979.

IS 1365 : 1978 or

shall conform
IS 852 : 1969

to
or

4.8 Decorative Plastic Laminates

Decorating plastic laminates required for the
manufacture of sofa-cum-bed shall conform to
IS 2046 : 1969 and shall be of the design and
finish as prescribed by the purchaser.

4.9 Paint

Enapiel, polish aod varnish shall be in
ance with the schedule given in
( Pqrt 2 ) ; 1967.

accord-
IS 2338

5 DIMENSIONS AND TOLERANCES

5«1 The overall dimensions of sofa-cum-bed
shall be as follows ( see Fig. 1 )

a) Seat height : 380 to 400 mm.

b) Clear seat depth : 550 to 600 mm, and

c) Height of back

above the seat ; 400 to 450 mm,

5«2 Tolerances

The overall dimensions specified in 5.1 shall not
vary by more than ± 5 mm.

6 FA?R|CATION

6.1 CooifopeBtti

The wooden sofa-cum-bed may be made hi
component form and then as^embledf. Th«

I

IS 12680 : 1989

A - Seat height

B » Seat depth

C » Height of back surface above seat

4 » Included angle (110 to US'")

Fio. 1 Sofa-cum-Bed

sides shall be made from wood particle board
or veneered particle board or plywood or block
board with thickness 20 mm with a tolerance
of 1 mm. Joinery shall be generally as describ-
ed in IS 384S : 1965.

7 PERFORMANCE REQUIREMENTS OF
FINISH

7.1 Every sofa-cum-bed shall be checked for
good workmanship and free from any stain
and warp.

7*2 Reabteace to Dry Heat

The test sample surface shall be tested for
resistance to dry heat in accordance with
IS 5807 ( Part 1 ) : 1975. The minimum quaU-
fying average ratings shall conform to 7 of
IS 5807 ( Part 1) : 1975.

7.3 Resistance to Wet Heat

The test sample surface shall be tested for
resistance to wet heat in accordance with
IS 5807 ( Part 2 ) : 1975. The minimum quali*
fying average rating shall conform to 7 of
IS 5807 ( Part 2 ) : 1975.

7.4 Resistance to Marking by Oils and Fats

The test sample surface shall be tested for
resistance to marking by oils and fats in accor-
dance with IS 5807 ( Part 3 ) : 1971- The test
result should conform to 5 and 6 of IS 5807
(Parts): 1971.

7.5 Resistance to Marking by Liquids

The test sample surface shall be tested for
resistance to marking by liquids in accordance
with IS 5807 ( Part 4) : 1975. The minimum
qualifying average rating shall conform to 8 of
IS 5807 (Part 4): 1975.

8 MARKING

8.1 All wooden sofa-cum-bed shall be marked
with a suitable mark identifying the manu-
facturer.

IS No.
IS 287: 1973

IS 303 : 1975
IS 401 : 1982
IS 848 : 1974

IS 851:1978

JS 852 : 1969

IS 1141 : 1973
IS 1365 : 1978

IS 1659 : 1979
IS 2046 : 1969

ANNEX A

( Clause 2.1 )

LIST OF REFERRED INDIAN STANDARDS

Title IS No.

rule

Recommendations for maximum
permissible moisture content for
timber used for different pur-
poses ( second revision ).
Plywood for general purposes
( second revision ).
Code of practice for , preserva-
tion of timber ( third revision ).
Synthetic resin adhesives for
plywood (phenolic and amino-
plastic) ( first revision ).
Synthetic resin adhesives for
construction work ( non-struc-
tural ) in wood ( first revision ).
Animal glue for general wood
working purposes ( first
revision ).

Code of practice for seasoning
of timber ( first revision )
Slotted countersunk head screws
( dia range 1 6 to 20 mm ) ( third
* revision).

'Block boards ( second revision ).
. l^ecorative thermosetting syn-
thetic resin bonded laminated
sheets ( first revision ).

IS 2338
(Part 2) : 1967

IS 3087 : 1986

IS 3097 : 1980

IS 3845 : 1965

IS 4835 : 1979

IS 5807 .
Part 1 : 1975
Part 2 : 1975
Part 3 : 1971
Part 4 : 1975

IS 6760 : 1972

Code of practice for finishing
of wood and wood based
materials: Part 2 Schedules.

Wood particle boards ( first
revision ).

Veneered particle boards ( first
revision ).

Code of practice for joints used
in wooden furniture.

Polyvinyl acetate disperson-
based adhesives for wood
( first revision ).

Method of test for clear finishes
for wooden Aimiture.

Resistance to dry heat ( first
revision ).

.Resistanoe to wet heat ( first
revision).

l^esistance to marking by oils

and fats.

Resistance to marking* by

liquids.

Slotted countersunk wood
screws.

BoTMv of btilan Staiii«f4t

BIS is a stotQtory institution established under the Bur€m o/tn^an SHmiatdli A^t i^ l6 promote
harmonious development of the activities of standardization* maifcing and quality oeflificatiM of
goods and attending to connected matters in the country.

Cofyright

BIS has the copyright of all its publications. No part of these publications may be reproduced in
any form without the prior permission in writing of BIS* This does not preclude the free ase» in
the course of implementing the standard, of necessary details, such as symbols and sizes, type or
grade designations. Enquiries relating to copyright be addressed to the Director (PubUcations), BIS*

ReTlalon of Indian Standards

Indian Standards are reviewed periodically and revised, when necessary and amendmentSit if A^y*
are issued from tune to time. Users of Indian Standards should ascertain that they are in possession
of the latest amendments or edition. Comments on this Indian Standard may be sent to BIS
giving the following reference :

Doc:No. BDC 35(4418)

Amendments Issued Since PabUcatlon

Amend No. Date of Issue Text Affected

BUREAU OF INDIAN STANDARDS

Headquarters :

Ma&ak Bhavan, 9 Bahadur Shah Za&x Marg, New Delhi 110002

Telephones : 331 01 31, 331 13 75 Tftlegnuns :

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